baroscope
n. வளிச்செறிவுமானி வளிமண்டலத்தில் செறிவு நிலையுள்ள மாறுபாடுகளைத் தெரிவிக்கும் கருவி.
Bar"o*scope, n. Etym: [Gr. weight + -scope: cf. F. baroscope.] Defn: Any instrument showing the changes in the weight of the atmosphere; also, less appropriately, any instrument that indicates - or foreshadows changes of the weather, as a deep vial of liquid holding in suspension some substance which rises and falls with atmospheric changes.